CN101913061A - Processing process of ball bag-shaped stainless steel retainer - Google Patents
Processing process of ball bag-shaped stainless steel retainer Download PDFInfo
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- CN101913061A CN101913061A CN 201010245440 CN201010245440A CN101913061A CN 101913061 A CN101913061 A CN 101913061A CN 201010245440 CN201010245440 CN 201010245440 CN 201010245440 A CN201010245440 A CN 201010245440A CN 101913061 A CN101913061 A CN 101913061A
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Abstract
The invention belongs to the technical field of bearing processing and provides a processing process of a ball bag-shaped stainless steel retainer. The process comprises the following steps of: roughly turning end surfaces, the inner diameter and the outer diameter and cutting off; turning cut-off surfaces; softly grinding the outer diameter; softly grinding the two end surfaces; fine turning the inner diameter; drilling rivet holes and installing rivets; finally turning the outer diameter; finally turning the inner diameter; drilling; and boring. The invention has the advantages of simple process flow, convenient processing, reliable quality, higher efficiency and low cost. The parallel difference of the end surfaces can be guaranteed within 0.015mm by adopting the process, and the roughness is guaranteed within 0.5mum, thus good size and surface precision are obtained.
Description
Technical field
The invention belongs to technical field of bearing processing, relate generally to a kind of processing process of ball bag-shaped stainless steel retainer.
Background technology
The 1Cr18Ni9Ti stainless steel material is as bearing solid cage material, because it has characteristics such as acid and alkali-resistance, corrosion-resistant, not corrosion, obtained a large amount of uses in the bearing that uses under soda acid operating mode and wet environment.For bearing holder, the surface roughness of general guiding surface and pocket internal surface of hole is had relatively high expectations, especially at high-precision bearing, its pocket hole surface roughness often requires Ra0.8～1.25 μ m, and requires also very high to each surperficial geometric accuracy of retainer.As certain model retainer is the 1Cr18Ni9Ti stainless steel material, and its structure is a two halves straight hole structure, and pocket hole roughness requires Ra1.0 μ m, and difficulty of processing is bigger.
Other material retainer processing process of homogenous configuration type is generally:
Rough turn end face, internal diameter, external diameter, cut-out → car section → buffing external diameter → finish turning both ends of the surface → finish turning internal diameter → brill rivet hole, drive the rivets → whole car external diameter → whole car internal diameter → boring → reaming.
But with reference to the processing experience and the processing process of other material were processed this kind stainless steel material in the past, because this material material is more glutinous, it is very poor to use lathe to carry out after the finish turning both ends of the surface operation product both ends of the surface roughness and parallel error, do not reach the requirement of product precision, the processing of influence back operation boring yet; Whole car is outer, during internal diameter, it is not very desirable using universal cutter (as white steel knife, common clamped cutting bit) to add the man-hour surface quality, roughness is not enough; Use drilling machine to carry out reaming owing to remain the processing of employing drill bit, be covered with cut in the hole, not only the aperture size scattered error is very big, and pocket hole roughness does not reach product requirement far away.
At present, domestic solution part end face method for quality comparatively commonly used is exactly the way that workpiece is fixed on the workbench, uses abrasive wheel end face workpiece end face to be carried out grinding with magnetic force on the surface grinding machine, but this material is fixed on the workbench for difficult being held by disk of low magnetic force material, and common plane grinding machine a plurality of parts that are time processing, be not suitable for carrying out the processing of single part, therefore on the common plane grinding machine, carry out well way of buffing both ends of the surface; If internally, external diameter carries out adding eventually that can all to adopt grinding man-hour be best, but because the magnetic conductivity difference and the present grinding machine of this material all are magnetic holding device basically, workpiece can not be held by grinding machine and carry out grinding, processing therefore internal, external diameter can only improve in Vehicle Processing, selects more suitable cutter for use; To processing at end in hole mainly is because the material material is glutinous, drag is big, therefore will improve pocket hole quality and must use lathe that rotating speed can be higher man-hour, adopts sharper cutter adding.
Summary of the invention
For overcoming the deficiencies in the prior art, the objective of the invention is to disclose a kind of processing process of ball bag-shaped stainless steel retainer.
For achieving the above object, the present invention adopts following technical scheme:
A kind of processing process of ball bag-shaped stainless steel retainer, its technological process is: rough turn end face, internal diameter, external diameter, cut-out → car section → buffing external diameter → buffing both ends of the surface (MG7340) → finish turning internal diameter → brill rivet hole, drive the rivets → whole car external diameter → whole car internal diameter → boring → bore hole.
Workpiece is carried out the processing of buffing both ends of the surface, on high precision surface grinding machine bed MG7340, carry out, at an outside aiding support--the V-type fork of installing of workbench, add and use V-type fork assist location man-hour, utilize the big cornerite of V-type fork that workpiece is positioned, not with the V-type fork of workbench rotation, guarantee that workpiece can be fixed on the machine tooling flat board under the state of low magnetic force, utilize grinding wheel spindle to move back and forth and use the periphery of emery wheel that workpiece is carried out single grinding, substitute the technology of existing processing method finish turning both ends of the surface and solved the processing bottleneck that the common plane grinding machine can't suck low magnetic force material, thereby make both ends of the surface obtain good location benchmark and surface quality, both guaranteed product quality, also laid a good groundwork for the processing of back operation.
When the inside and outside footpath of whole car, the characteristics sticking according to the 1Cr18Ni9Ti stainless steel material adopt special CVD cutting tool coated with hard alloy GC4235 (HC).
After the boring bore hole processing is being carried out in the pocket hole on jig boring machine, utilize boring machine rotating speed height, generally can be stabilized on 2500 rev/mins the state and work, utilize little, the sharp characteristics of boring cutter blade to replace drill bit to carry out the processing in hole again, improve the every precision and the roughness in pocket hole, satisfy the high standard requirement of part.
The present invention takes above process that following advantage is arranged:
1. adopt high precision surface grinding machine bed MG7340 to carry out high-precision grinding, solved reason owing to the stainless steel material self-characteristic, the problem that finish turning both ends of the surface precision and roughness are not enough, it is not enough also to have overcome when carrying out grinding with common plane grinding machine M7475 magnetic force, product spare can not be by tightly suction on platform, the phenomenon that in process, will occur becoming flexible, the product that processes height is low, precision also is not easy bad very much, needs operating personnel to have this problem of very high machine operation level.On the high precision surface grinding machine bed, process, use V-type fork location, utilize grinding wheel spindle to move back and forth and carry out single grinding, both guaranteed good end face precision, also overcome part and be difficult for being held the problem that needs high operant level.
2. use special cutter CVD cutting tool coated with hard alloy Sandvik GC4235 (HC) to process in the time of the inside and outside footpath of whole car, both guaranteed the part precision requirement, also solved the roughness problem that part produces owing to the glutinous characteristic of material, also avoided all surface is carried out grinding, improve production efficiency, saved a large amount of costs.
3. after boring, adopt jig boring machine to carry out bore hole to the pocket hole, utilize the sharp of the high-speed state of boring machine and cutter, solved to adopt in the drilling machine reaming hole and be covered with cut and the very big problem of aperture size scattered error, improved the every precision and the roughness in pocket hole greatly, satisfied the high-precision requirement of high-precision bearing for retainer pocket hole.
The compliance test result of processing process of ball bag-shaped stainless steel retainer:
Use this process flow process simple, easy to process, reliable in quality, efficient is higher; Adopt the method end face roughness of conventional finish turning can only guarantee 2.0 μ m, in the parallel error 0.05mm, adopt common plane grinding machine roughness can guarantee in 0.6 μ m, but sides out of parallel and height dimension can't guarantee, adopt above-mentioned this process sides out of parallel can guarantee in 0.015mm, roughness guarantees to have obtained good size and surface accuracy in 0.5 μ m.
Description of drawings
Fig. 1 is the vertical view of cross grinding processing of the present invention
Fig. 2 is the front view of cross grinding processing of the present invention
Fig. 3 is the vertical view of conventional end face cross grinding processing
Fig. 4 is the front view of conventional end face cross grinding processing
Among the figure: 1, platen, 2, workpiece, 3, emery wheel.
The specific embodiment
In conjunction with the accompanying drawings and embodiments the present invention is illustrated:
A kind of processing process of ball bag-shaped stainless steel retainer, its technological process is:
1. rough turn end face, internal diameter, external diameter, cut-out: adopt the C630 lathe to process, remove each surperficial top layer oxide skin of forging, the long tube material is cut into the height dimension that each workpiece needs.
2. car section: adopt the CA6140 machined into, unified each workpiece height dimension.
3. buffing external diameter: adopt the processing of M1083 cylinder and cone grinding machine, improve external diameter surface precision and roughness, and be the good machining benchmark of back operation acquisition.
4. buffing both ends of the surface: workpiece is carried out the processing of buffing both ends of the surface, on high precision surface grinding machine bed MG7340, carry out, at an outside aiding support--the V-type fork of installing of workbench, add and use V-type fork assist location man-hour, utilize the big cornerite of V-type fork that workpiece is positioned, not with the V-type fork of workbench rotation, guarantee that workpiece can be fixed on the machine tooling flat board under the state of low magnetic force, utilize grinding wheel spindle to move back and forth and use the periphery of emery wheel that workpiece is carried out single grinding, substitute the technology of existing processing method finish turning both ends of the surface and solved the processing bottleneck that the common plane grinding machine can't suck low magnetic force material, thereby make both ends of the surface obtain good location benchmark and surface quality, both having guaranteed product quality, also is that good end face location benchmark is prepared in the processing of back operation.
5. finish turning internal diameter: adopt AD-25 numerical control car to process, unified workpiece diameter size guarantees workpiece diameter to boring the fit clearance of rivet hole mould, and the processing of boring rivet hole for the back operation is ready.
6. bore rivet hole, drive the rivets: adopt MRA560V Cutter Body Processing with Machining Center rivet hole, drive the rivets by hand, for back operation two halves retainer is prepared with the worker at one.
7. whole car external diameter: adopt AD-25 numerical control car to process, carry out whole processing loading onto under the state of rivet to the two halves retainer unification, guarantee that the two halves retainer does not stay step at final assembling riveted joint back external diameter, do not stay seam, whole car external diameter operation adopts CVD cutting tool coated with hard alloy Sandvik GC4235 (HC) to process, (this cutter applies one deck on hard alloy substrate hard and the high refractory metal compound of wearability obtain as thin as a wafer, make cutter both have the intensity and the toughness of matrix material, have very high wearability again) process, this cutter itself has hard alloy body, itself is comparatively sharp, moreover has a coating, when cutting, can bear bigger cutting force and take away more heat, have the higher life-span, thereby can obtain better surface quality.
8. whole car internal diameter: adopt AD-25 numerical control car to process, carry out whole processing loading onto under the state of rivet to the two halves retainer unification, guarantee that the two halves retainer does not stay step, do not stay seam at final assembling riveted joint back internal diameter, whole car internal diameter operation adopts CVD cutting tool coated with hard alloy Sandvik GC4235 (HC) to process,, to obtain better surface quality.
9. boring: adopt the processing of Z525 drilling machine, the processing pre-manufactured hole for bore hole is prepared, reduces the bore hole allowance.
10. bore hole: adopt the processing of Kunming TK series numerical control coordinate borer, guarantee the dimensional accuracy and the roughness in finished product pocket hole.
Claims (1)
1. processing process of ball bag-shaped stainless steel retainer, it is characterized in that: its technological process is: rough turn end face, internal diameter, external diameter, cut-out → car section → buffing external diameter → buffing both ends of the surface → finish turning internal diameter → brill rivet hole, drive the rivets → whole car external diameter → whole car internal diameter → boring → bore hole; The both ends of the surface of retainer are carried out buffing processing, on high precision surface grinding machine bed MG7340, carry out, at aiding support-V-type fork of the outside installation of workbench, add and use V-type fork assist location man-hour, utilize the big cornerite of V-type fork that workpiece is positioned, not with the V-type fork of workbench rotation, guarantee that workpiece can be fixed on the machine tooling flat board under the state of low magnetic force, utilize grinding wheel spindle to move back and forth and use the periphery of emery wheel that workpiece is carried out single grinding, thereby make both ends of the surface obtain good location benchmark and surface quality; The inside and outside footpath of whole car operation adopts CVD cutting tool coated with hard alloy Sandvik GC4235 (HC) to process, and guarantees the part precision requirement, solves part owing to the roughness problem that the glutinous characteristic of material produces, and has avoided all surface is carried out grinding; After the boring bore hole processing is being carried out in the pocket hole on numerical control coordinate borer, utilize the sharp of the high-speed state of boring machine and cutter, solved to adopt in the drilling machine reaming hole and be covered with cut and the very big problem of aperture size scattered error, improved the every precision and the roughness in pocket hole greatly, satisfied the high-precision requirement of high-precision bearing for retainer pocket hole.
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| CN 201010245440 CN101913061A (en) | 2010-07-30 | 2010-07-30 | Processing process of ball bag-shaped stainless steel retainer |
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| CN 201010245440 CN101913061A (en) | 2010-07-30 | 2010-07-30 | Processing process of ball bag-shaped stainless steel retainer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672446A (en) * | 2011-03-16 | 2012-09-19 | 大连瑞谷科技有限公司 | Technical improvement for processing extra-large bearing straight pocket cage rivet hole |
| CN102756244A (en) * | 2012-07-09 | 2012-10-31 | 大连冶金轴承股份有限公司 | Machining method of wind-power center-aligning spherical surface roller bearing retainer |
| CN102756312A (en) * | 2011-04-25 | 2012-10-31 | 东莞博诺制药装备科技有限公司 | Method for manufacturing high-accuracy rotating shaft by surface grinding machine |
| CN104227352A (en) * | 2014-09-09 | 2014-12-24 | 北京三联虹普新合纤技术服务股份有限公司 | Production process of high-speed rotating part chuck shaft polished sleeve in high-speed winding head |
| CN104439931A (en) * | 2014-10-30 | 2015-03-25 | 吴中区光福良盛机械厂 | Round pocket hole bearing retainer machining process |
| CN108161368A (en) * | 2018-01-26 | 2018-06-15 | 洛阳富海合精工机械有限公司 | A kind of processing method of integral type shield arbor bearing retainer |
| CN109807570A (en) * | 2019-03-25 | 2019-05-28 | 无锡易通精密机械股份有限公司 | A kind of processing technology of the large-scale spacer ring of wind-power electricity generation bearing |
| CN109807569A (en) * | 2019-03-25 | 2019-05-28 | 无锡易通精密机械股份有限公司 | A kind of retainer processing technology of the wind power bearing with high rigidity |
| CN111037241A (en) * | 2020-01-14 | 2020-04-21 | 瓦房店阿科比轴承有限公司 | Comb type retainer preparation process |
| CN112404911A (en) * | 2020-12-07 | 2021-02-26 | 大连瑞谷科技有限公司 | Processing technology for pocket hole of spherical roller bearing retainer |
Citations (3)
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| JP2005076810A (en) * | 2003-09-02 | 2005-03-24 | Nsk Ltd | Retainer for needle bearing and needle bearing |
| CN101307800A (en) * | 2008-06-17 | 2008-11-19 | 浙江天马轴承股份有限公司 | Inner pulling type cylindrical roller bearing cage processing method and its cage |
| CN201396373Y (en) * | 2009-06-05 | 2010-02-03 | 北京昆仑轴承有限公司 | Comb-shaped cage with double-center-distance pockets for bearings |
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| JP2005076810A (en) * | 2003-09-02 | 2005-03-24 | Nsk Ltd | Retainer for needle bearing and needle bearing |
| CN101307800A (en) * | 2008-06-17 | 2008-11-19 | 浙江天马轴承股份有限公司 | Inner pulling type cylindrical roller bearing cage processing method and its cage |
| CN201396373Y (en) * | 2009-06-05 | 2010-02-03 | 北京昆仑轴承有限公司 | Comb-shaped cage with double-center-distance pockets for bearings |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672446A (en) * | 2011-03-16 | 2012-09-19 | 大连瑞谷科技有限公司 | Technical improvement for processing extra-large bearing straight pocket cage rivet hole |
| CN102756312A (en) * | 2011-04-25 | 2012-10-31 | 东莞博诺制药装备科技有限公司 | Method for manufacturing high-accuracy rotating shaft by surface grinding machine |
| CN102756312B (en) * | 2011-04-25 | 2015-05-13 | 北京精博信展览有限公司 | Method for manufacturing high-accuracy rotating shaft by surface grinding machine |
| CN102756244A (en) * | 2012-07-09 | 2012-10-31 | 大连冶金轴承股份有限公司 | Machining method of wind-power center-aligning spherical surface roller bearing retainer |
| CN104227352A (en) * | 2014-09-09 | 2014-12-24 | 北京三联虹普新合纤技术服务股份有限公司 | Production process of high-speed rotating part chuck shaft polished sleeve in high-speed winding head |
| CN104439931A (en) * | 2014-10-30 | 2015-03-25 | 吴中区光福良盛机械厂 | Round pocket hole bearing retainer machining process |
| CN108161368A (en) * | 2018-01-26 | 2018-06-15 | 洛阳富海合精工机械有限公司 | A kind of processing method of integral type shield arbor bearing retainer |
| CN109807570A (en) * | 2019-03-25 | 2019-05-28 | 无锡易通精密机械股份有限公司 | A kind of processing technology of the large-scale spacer ring of wind-power electricity generation bearing |
| CN109807569A (en) * | 2019-03-25 | 2019-05-28 | 无锡易通精密机械股份有限公司 | A kind of retainer processing technology of the wind power bearing with high rigidity |
| CN111037241A (en) * | 2020-01-14 | 2020-04-21 | 瓦房店阿科比轴承有限公司 | Comb type retainer preparation process |
| CN112404911A (en) * | 2020-12-07 | 2021-02-26 | 大连瑞谷科技有限公司 | Processing technology for pocket hole of spherical roller bearing retainer |
| CN112404911B (en) * | 2020-12-07 | 2022-08-16 | 大连瑞谷科技有限公司 | Processing technology for pocket hole of spherical roller bearing retainer |
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Open date: 20101215 |